JAMB Biology 2010 Objective — Question 23
Question 23 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2010 Objective paper, with the correct answer and a full explanation.
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Which of the following stimuli is likely to elicit a nastic response in an organism?
- A. Touch
- B. Light intensityCorrect
- C. Chemical substances
- D. Gravity
Explanation
Nastic movement is a non-directional response to stimuli such as light intensity or humidity, unlike tropisms which are directional responses.
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